import { LitElement } from "lit";
export declare enum State {
    OPERATIONAL = "operational",
    DISRUPTED = "disrupted",
    DOWN = "down",
    UNKNOWN = "unknown",
    NODATA = "nodata",
    OFFLINE = "offline"
}
/**
 * @summary `np-status` is a custom element that displays the current health status of the nopwd API.
 *
 * @description
 * This component connects to a WebSocket to receive real-time status updates and displays
 * the current state of the nopwd API.
 * The possible states are:
 * - `operational`: All systems are functioning correctly.
 * - `disrupted`: Some errors occurred in the last 24 hours.
 * - `down`: No successful responses in the last hour.
 * - `nodata`: Insufficient data to determine status.
 * - `offline`: Unable to connect to the service.
 * - `unknown`: The status is currently unknown.
 *
 * @slot - The default slot for the label.
 * @slot operational - Content displayed when all services are operational.
 * @slot disrupted - Content displayed when some errors occurred in the last 24 hours.
 * @slot down - Content displayed when no successful responses in the last hour.
 * @slot nodata - Content displayed when there is insufficient data to determine status.
 * @slot offline - Content displayed when unable to connect to the service.
 *
 * @csspart link - The component's link wrapper.
 */
export declare class NpStatus extends LitElement {
    state: State;
    private ws?;
    private updateTimeoutId?;
    constructor();
    connectedCallback(): Promise<void>;
    disconnectedCallback(): Promise<void>;
    private connect;
    private disconnect;
    render(): import("lit-html").TemplateResult<1>;
    static styles: import("lit").CSSResult[];
}
declare global {
    interface HTMLElementTagNameMap {
        "np-status": NpStatus;
    }
}